GLR

GLR

Also Know as the Gas Light Routine

We don’t care where the name came from but we do know that the GLR will save money on energy bills and encourage your plant to start flowering a little bit faster.

The GLR is only used for the vegetative cycle.

This light routine is a little different with three objectives:

Giving the plant the light it needs for vigorous root and foliage development

Save energy resulting in a lower energy bill

Causes the plant to flower faster than any other light schedule

The GLR light schedule is as follows:

12 hours of light on

5.5 hours of light off

1 hour of light on

5.5 hours of light off

This results in running the lights for 13 hours each day resulting in a significant savings and when it comes time to start the flowering cycle, your buds will start forming quicker.

NOTE: some strains will flower using GLR so watch for that. If you do see the flowering cycle commence, just revert back to your regular vegetative hours.

GAS LIGHT ROUTINE LIGHTING SCHEDULE

12 Hours on

7 PM - 7 AM

Adjust listed times to your schedule

5.5 Hours off

7 AM - 12:30 PM

1 Hour on

12:30 PM - 1:30 PM

This one hour keeps plants in veg cycle

5.5 hours off

1:30 PM - 7 PM

VEGETATIVE CYCLE

Some growers use a full 24 hours of light and others use 18 hours of light and 6 hours of darkness. On one hand, the grower is trying to mimic the summer daylight hours (18 on 6 off) while on the other hand the grower is trying to push their plants to grow faster (24 on) with no rest or relief from the light.

We have tried both and see no advantage to running the lights 24 hours on. The plants look fine and the yields are similar what ever method you use. Of course running your lights for 24 hours will increase your energy bill. Try the GLR and watch your energy bills drop.

FLOWERING CYCLE

Most growers use a 12 hours of light on and 12 hours off.

Other growers, including us start with 12 on and 12 off than every 2 weeks increase the off by 30 minutes trying to mimic the end of summer/fall sunlight.

Here is a flowering cycle lighting schedule we are following right now.

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I grew my first crop out doors in 1981 in the middle of a corn patch. We called it “South Euclid Gold”. 75% seeds but we didn’t care, we rolled it, we smoked it, we got high and it didn’t cost a dime.
I stored it in plastic garbage bags in a shed for a few weeks. Ruined all of it. Twenty, seven foot plants.

In those days, an oz of pot was around $35 on the street.

36 years later and I’m still at it. Let my experience save you some pain.

2 Comments

[…] grow, boys will show little ball sacks, move the boys out and revert back to the vegetative cycle (GLR or 18 hours on 6 hours off), and let them to grow for another 50 days than they’ll be ready […]

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